Scammers Bypass Microsoft Office 365 MFA In BEC Attacks

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Scammers recently conducted a large-scale business email compromise (BEC) bypassing Microsoft Office 365 MFA.

While Microsoft 365 Defender researchers intercepted the cloud-based infrastructure used by scammers, the researchers explained that the attack occurred behind a recent BEC incident involving stolen login information through phishing messages that redirected targets to landing pages that mimicked Microsoft login pages.

It then asks them to enter their passwords under a prefilled username field.

Although multi-factor authentication already blocks stolen inbox credentials, attackers use older protocols to infect emails and bypass MFA.

For more information, read the original story in Bleeping Computer.

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